package com.ruoyi.quanzi.service.impl;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.ruoyi.quanzi.mapper.SunTopicMapper;
import com.ruoyi.quanzi.domain.SunTopic;
import com.ruoyi.quanzi.service.ISunTopicService;

/**
 * 话题服务实现类
 * 
 * @author ruoyi
 * @date 2023-01-15
 */
@Service
public class SunTopicServiceImpl implements ISunTopicService
{
    @Autowired(required = false)
    private SunTopicMapper sunTopicMapper;

    /**
     * 查询话题
     * 
     * @param id 话题ID
     * @return 话题
     */
    @Override
    public SunTopic selectSunTopicById(Long id)
    {
        // 模拟实现，实际应该调用Mapper
        if (sunTopicMapper != null) {
            return sunTopicMapper.selectSunTopicById(id);
        }
        
        // 临时模拟数据
        SunTopic topic = new SunTopic();
        topic.setTopicId(id);
        topic.setTopicName("话题" + id);
        topic.setDescription("这是话题" + id + "的描述");
        topic.setCoverImage("https://example.com/cover.png");
        topic.setPostCount(100);
        topic.setMemberCount(50);
        topic.setViewCount(200);
        topic.setIsRecommend(1);
        topic.setIsHot(1);
        topic.setStatus(0);
        return topic;
    }

    /**
     * 查询话题列表
     * 
     * @param sunTopic 话题
     * @return 话题集合
     */
    @Override
    public List<SunTopic> selectSunTopicList(SunTopic sunTopic)
    {
        // 模拟实现，实际应该调用Mapper
        if (sunTopicMapper != null) {
            return sunTopicMapper.selectSunTopicList(sunTopic);
        }
        
        // 临时模拟数据
        List<SunTopic> list = new ArrayList<>();
        for (int i = 1; i <= 10; i++) {
            SunTopic topic = new SunTopic();
            topic.setTopicId((long)i);
            topic.setTopicName("话题" + i);
            topic.setDescription("这是话题" + i + "的描述");
            topic.setCoverImage("https://example.com/cover.png");
            topic.setPostCount(100 + i);
            topic.setMemberCount(50 + i);
            topic.setViewCount(200 + i);
            topic.setIsRecommend(i % 2);
            topic.setIsHot(i % 3 == 0 ? 1 : 0);
            topic.setStatus(0);
            list.add(topic);
        }
        return list;
    }

    /**
     * 新增话题
     * 
     * @param sunTopic 话题
     * @return 结果
     */
    @Override
    public int insertSunTopic(SunTopic sunTopic)
    {
        // 模拟实现，实际应该调用Mapper
        if (sunTopicMapper != null) {
            sunTopic.setCreateTime(new Date());
            return sunTopicMapper.insertSunTopic(sunTopic);
        }
        return 1;
    }

    /**
     * 修改话题
     * 
     * @param sunTopic 话题
     * @return 结果
     */
    @Override
    public int updateSunTopic(SunTopic sunTopic)
    {
        // 模拟实现，实际应该调用Mapper
        if (sunTopicMapper != null) {
            sunTopic.setUpdateTime(new Date());
            return sunTopicMapper.updateSunTopic(sunTopic);
        }
        return 1;
    }

    /**
    /**
     * 批量删除话题
     * 
     * @param ids 需要删除的话题ID
     * @return 结果
     */
    @Override
    public int deleteSunTopicByIds(Long[] ids)
    {
        // 模拟实现，实际应该调用Mapper
        if (sunTopicMapper != null) {
            return sunTopicMapper.deleteSunTopicByIds(ids);
        }
        return ids.length;
    }
    
    /**
     * 批量删除话题（兼容旧代码）
     * 
     * @param topicIds 需要删除的话题ID
     * @return 结果
     */
    @Override
    public int deleteSunTopicByTopicIds(Long[] topicIds)
    {
        return deleteSunTopicByIds(topicIds);
    }

    /**
     * 删除话题信息
     * 
     * @param id 话题ID
     * @return 结果
     */
    @Override
    public int deleteSunTopicById(Long id)
    {
        // 模拟实现，实际应该调用Mapper
        if (sunTopicMapper != null) {
            return sunTopicMapper.deleteSunTopicById(id);
        }
        return 1;
    }
    
    /**
     * 查询热门话题
     * 
     * @return 热门话题集合
     */
    @Override
    public List<SunTopic> selectHotTopics()
    {
        // 模拟实现，实际应该调用Mapper
        if (sunTopicMapper != null) {
            SunTopic topic = new SunTopic();
            topic.setIsHot(1);
            return sunTopicMapper.selectSunTopicList(topic);
        }
        
        // 临时模拟数据
        List<SunTopic> list = new ArrayList<>();
        for (int i = 1; i <= 5; i++) {
            SunTopic topic = new SunTopic();
            topic.setTopicId((long)i);
            topic.setTopicName("热门话题" + i);
            topic.setDescription("这是热门话题" + i + "的描述");
            topic.setCoverImage("https://example.com/hot_cover.png");
            topic.setPostCount(500 + i);
            topic.setMemberCount(200 + i);
            topic.setViewCount(1000 + i);
            topic.setIsRecommend(1);
            topic.setIsHot(1);
            topic.setStatus(0);
            list.add(topic);
        }
        return list;
    }
    
    /**
     * 查询推荐话题
     * 
     * @return 推荐话题集合
     */
    @Override
    public List<SunTopic> selectRecommendTopics()
    {
        // 模拟实现，实际应该调用Mapper
        if (sunTopicMapper != null) {
            SunTopic topic = new SunTopic();
            topic.setIsRecommend(1);
            return sunTopicMapper.selectSunTopicList(topic);
        }
        
        // 临时模拟数据
        List<SunTopic> list = new ArrayList<>();
        for (int i = 1; i <= 5; i++) {
            SunTopic topic = new SunTopic();
            topic.setTopicId((long)i);
            topic.setTopicName("推荐话题" + i);
            topic.setDescription("这是推荐话题" + i + "的描述");
            topic.setCoverImage("https://example.com/recommend_cover.png");
            topic.setPostCount(300 + i);
            topic.setMemberCount(150 + i);
            topic.setViewCount(800 + i);
            topic.setIsRecommend(1);
            topic.setIsHot(i % 2);
            topic.setStatus(0);
            list.add(topic);
        }
        return list;
    }
    
    /**
     * 关注话题
     * 
     * @param topicId 话题ID
     * @param userId 用户ID
     * @return 结果
     */
    @Override
    public int followTopic(Long topicId, Long userId)
    {
        // 模拟实现，实际应该调用Mapper
        if (sunTopicMapper != null) {
            // 增加关注数
            SunTopic topic = sunTopicMapper.selectSunTopicById(topicId);
            if (topic != null) {
              //  topic.setFollowCount(topic.getFollowCount() + 1);
                sunTopicMapper.updateSunTopic(topic);
            }
            // 添加关注记录
            // sunTopicMapper.insertTopicFollow(topicId, userId);
        }
        return 1;
    }
    
    /**
     * 取消关注话题
     * 
     * @param topicId 话题ID
     * @param userId 用户ID
     * @return 结果
     */
    @Override
    public int unfollowTopic(Long topicId, Long userId)
    {
        // 模拟实现，实际应该调用Mapper
        if (sunTopicMapper != null) {
            // 减少关注数
            SunTopic topic = sunTopicMapper.selectSunTopicById(topicId);
            /*if (topic != null && topic.getFollowCount() > 0) {
                topic.setFollowCount(topic.getFollowCount() - 1);
                sunTopicMapper.updateSunTopic(topic);
            }*/
            // 删除关注记录
            // sunTopicMapper.deleteTopicFollow(topicId, userId);
        }
        return 1;
    }
    
    /**
     * 查询用户关注的话题
     * 
     * @param userId 用户ID
     * @return 话题集合
     */
    @Override
    public List<SunTopic> selectFollowedTopics(Long userId)
    {
        // 模拟实现，实际应该调用Mapper
        if (sunTopicMapper != null) {
            // return sunTopicMapper.selectFollowedTopics(userId);
        }
        
        // 临时模拟数据
        List<SunTopic> list = new ArrayList<>();
        for (int i = 1; i <= 3; i++) {
            SunTopic topic = new SunTopic();
            topic.setTopicId((long)i);
            topic.setTopicName("关注话题" + i);
            topic.setDescription("这是关注话题" + i + "的描述");
            topic.setCoverImage("https://example.com/followed_cover.png");
            topic.setPostCount(200 + i);
            topic.setMemberCount(100 + i);
            topic.setViewCount(500 + i);
            topic.setIsRecommend(i % 2);
            topic.setIsHot(i % 2);
            topic.setStatus(0);
            topic.setIsFollowed(true);
            list.add(topic);
        }
        return list;
    }
}